Mechanism for returning the carriage of a type-writing machine.



No. 859,576. I PATENIED JULY 9, 19 07. ,H.;J. OTTO. MECHANISM FORRBTURNING THE CARRIAGE OF A TYPE WRITING MACHINE. APPLIOATION FILED JULY 9,-1906.

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rrpmvlioc wi tmeoqeo No. 859,576. I PATENTED JULY9,190"7.

H. J. OTTO.-

MEGHANISM FOR RETURNINGTHE CARRIAGE 0F A TYPB WRITING MACHINE.

APPLICATION FILED JULY 9, 1906. v

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mil/l attozueka'o UNITED STATES .ieii'rENTjop nion HENRYJ. OTTO, OF PRINCETON, INDIANA.

, MECHANISM FOR RETURNING THE CARRIAGE OF A TYPE-WRITING MACHINEL Specification of Letters Patent.

Patented July 9,1907.

Application filed m 9,1906. Serial No- 325,336.

To all 'whom it may concern:

I Consisting of two cone-valvcsl i, 15 mounted upon a lie it known that l, HENRY .l. O'r'ro, a citizen of the i sliding stem 16 and adapted to al1'.crnatoly 'cngage United States, residing at Princeton, in the county of Gibson, and State of Indiana, have invented certain new and useful Improvements in Mechanism for Beturning the Carriage of a Type-Writing Machine; and 1 do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

This invention relates to improvements in'-type- Writers, linotype'machines and the like, andmore particularly to means for operating the carriages of such machines by a fluid under pressure or by suction.

One object of the prcsentinventi'on is to provide a simple and practical operating mechanism for returning the carriage of a typewriter or the like, with little or no shock or jar.

Another object of the invention is to provide a returning mechanism of thischaracter which may be controlled from the keyboard of the machine and by meansoi which the carriage may be stopped at'any desired pointin its return movement.

With the above and other objects in view, theinvention consists of certain novel features of construction, combination and arrangement of parts hereinafter described and claimed. j i

In the accompanying drawings,-Figure l is a horizontal sectional view through a typewritingmachine, showing the application of the invention thereto; Figs. 2 and 3 are vertical transverse and longitudinal sectional views through the same, and Fig. 4 is a detail sectional view through the operatingmechanism.

Referring to the drawings by numeral, 1 denotes the frame of a typewriter and 2' its reciprocal carriage which is-moved in one direction in the usual manner by a coil spring 3 and in the opposite direction by my 1 improved mechanism 4. The latter comprises a relatively stationary cylinder 5v and a sliding cylinderfi' which telescopes the cylinder 5 and is actuated by either pressure or suction within said cylinders; The cylinders 5, 6 are disposed horizontally in the lower rear portion of the typewriter and are of such length that the stroke of theisliding cylinder 6 is equalto the extreme required movement'oi the carriage to which itis connected by chains 7 passed over guide wheels 8, or by any other suitable connections". The sliding cylinder 6 is guided by a rod 9 projecting concentrically from its closed end and slidable in a guide 10 upon the frame 1. Thestationary cylinder 5 is suitably mounted within the frame 1 and has its closed end connected to a valve casing 1.1, which is in turn connected to a pipe 12 containing. a regulating. and cut-- off valve'13. The casing 11 contains a valve device -is the preicrred arrangement of. the valves when compressed air or other fluid under pressure isuscd for actuating the cylinder 6; but when the latter is operated by suction, the normal positions of the valves are re versed.

. It will be seen thatwhen the valve stem 16 isforced inwardly, the valve 14 will close upon its seat 17 and the valve 15 will open to permit the compressed air in the supply pipe 12 to enter the cylinders 5, (i and force the latter outwardly upon the former, and thereby re- 5 turn the carriage 2. c i

It will be understood that the cylinder 6 is moved in the opposite direction or closed upon the cylinder 5 by the outward movement of the carriage under the action I of its actuating spring-3, the usual chock device controlling the action of said spring.

"The valve stem 16'is actuated bya swinging frame 20,

whicliis in turn actuated by a plurality of key levers 21 arranged upon the keyboard of the typewriter', said key leversbeing adaptedto both actuate the valve device and to limit the movement of the cylinder 6, and

hence the return of the carriage 2, as presently explained. The frame 20 is disposed transversely and consists of arod 22 connectingthe free ends of two arms 2 whi h have their opposite ends pivotally mounted at 24 upon the frame of the machine. The valve stem 16 has its iorwardlyprojecting outer end loosely connected to one of the arms 23, as shown at 25. Each of the key levers 21 is pivoted at 26 and has upon its front end a finger piece or key 27 containing a number or other symbol to indicate the point ,atwhich the carriage will stop in its return'movement. The inner or rear ends of the levers 21 are formed with enlarged curved portionsZB, which are adapted to engage the 6 when their lreys 27 are depressed. Any number of the keys 21 may be employed, so thatthe carriage may be stopped in iip return movement to allow any margin atthe left of the sheet of paper on the platen of the carriage; It, will thus b'eiseen that by simply depressing.

rod 22 and to swing into the path of the sliding cylinder with the accompanying drawings, the construction, op-

Having thus described my invention, what I-claim as new and desire to secure by Letters-Patent is 1. In a typewriting machine the'combinotion with' its frame and its reciprocal carriage, of fluid opera ted means for returning said carriuge, and key ievefs 'forlv'ariably limiting the return movement of the carriage and for controlling of said fluid supply.

2. In a typewriting machine or the like, the combination with its frame and its reciprocal carriage, of fluid operated means for returning said carriage, an operating element for said fluid operated means, and a plurality of devices for variably limiting the return movement'of the carriage and each. controlling said fluid supply. v v y 3. In a typewritin'g machine or'th'e like, the combination with its frame and its reciprocal carriage,- of a relatively stationary eiement,-a' hollow element telescopically en gaged with said stationa1'y- 'element: and connected to said carriage, means for actuating said carringein one direction, means for controlling the admission and exhaust of a fluid to and from said hollow'element, a swinging o perating device for actuating s aid fluid controlling means} frame and its reciprocal :cer-riage; of a relatively stationuryelement, a hollow element telescopicnllyeng'uged with i said stationary element andconnected to said carriage,

seems I and a key lever for actuating said; swingingQdevice and moving into the path of the hollow element for limiting the movement of said hollow element.

4. In a typewriting macbine or the like, the combination with its frame and its reciprocal carriage, of a relatively stationary element, a hollow element telescopically engnged with saidstationary element and connected to said' -carriage/means for actuating said carriage in one direction, a va-lvedevice for controlling the admission and exhaust oi a-fluid toand from said hollow element, 21 swinging frame for actuating said valve device, and a plurality of key levers for. actuating saidswinginghframe and variubly limiting the movement of said' hollow element, substantiully. as described. 5. In -& typewriting machine, the combination with its means for controllingfthe admission and exhaustof a fluid to and from s'aid hollow element, a swinging operatingrdevice for ac'tuating said fluid controlling'means and a key lever for actuatingsnid swinging device having a cam member for engaging said device and moving. it into -'the path of saidh'ollow member to -limitvthe movement of said hollow element.

In testimony whereof I have hereunto set presence of twosubscribing witnesses.

Witnesses: 7

WILLIAM M. RITCHIE, Ronmrr C. BAL'rznLL.

my hand in HENRY J. o'rro. 

